How can I solve this with a finance calculator?

21. Dog Up! Franks is looking at a new sausage system with an installed cost of $410,000. This cost will be depreciated straight-line to zero over the project's five-year life, at the end of which the sausage system can be scrapped for $70,000. The sausage system will save the firm $115,000 per year in pretax operating costs, and the system requires an initial investment in new working capital of $15,000. If the tax rate is 34% and the discount rate is 10%, what is the NPV of this project